Issued Patents 2003
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6669756 | Discharge apparatus for movable hearth type heat-treatment furnace, its operation method, and method and apparatus for manufacturing molten iron using the same | Yoshihiro Urabe, Takao Umeki, Masahiko Tetsumoto, Sumito Hashimoto | 2003-12-30 |